Computing scale



March 2l, 1933. F. FULLER 1,902,066

COMPUTING SCALE Filed March 5, 1930 10 Sheets-Sheet l @Ms JM March 21, 1933- F. L. FULLER COMPUTING SCALE 1950 10 Sheets-Sheet 2 l Illlll. llllllllillllllll l lll. Y

FiledA Marh 5,

March 21, 1933. F. l.. FULLER COMPUT ING SCALE Filed March 5, 19:0 1o sheets-sheet :s

March 21, 1933. F. 1 FULLER 1302,065

COMPUTING SCALE Filed March 5, 3.930y 10 Sheets-Sheet 4 QQ G o w: n. mhz/M DQ@ @9D s fd ...4 u n nu' March 21, 1933. F. l.. FULLER COMPUTING SCALE Filed March 5, 1930 l0 Sheets-Sheet 5 MJL V f l all ..J *.llVL Vj IIlIFLi'IFL-IN J J Tr] j WJ J m01 .M

March 21, 1933. F. 1 FULLR COMPUT ING SCALE Filed March 5,'1930 10 Sheets-Shea?l 6 March 21,*1933. F. L.. FULLER COMPUTI NG S GALE Filed March 5, 1950 lO Sheets-Sheet 7 l wumtoz 195o 10 sheets-sheet a March 21, 1933. F, i.. FULLER COMPUTXNG SCALE Filed March 5,

,l Eq l t F. L. FULLER Marcha; 1933.

COMPUTING SCALE Filed March 5` 1950 10 Sheets-Sheet 9 d" Umlldlulll..

March 21, 1933'. F, 1 FULLER 1,902,066

COMPUTING SCALE Filed March 5. 1950 10 Sheets-Sheet lO FIGJLI.

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Patented Mar. 21, 1933 UNITED STATES PATENT OFFICE FREDERICK L. FULLER, OF WEST ORANGE, NEW JERSEY, ASS'IGN OR TO DAYTON SCALE COMPANY, OF DAYTON, OHIO, A

CORPORATION OF NEW JERSEY COMPUTING SCALE Application led March 5,

This case relates to weighing and computing scales and particularly to one in which a computing chart is variously operated in accordance with different7 selected factors-of the weight.

The object of this invention in gene-ral is to provide novel and improved mechanism for selecting the factors in accordance with which the computing chart is to be operated.

More specifically in connection with factor levers which associate the computing chart with the load support, it is an object to provide rotatably mounted7 rockable, nested members for controlling the factor levers.

Various other objects and advantages of my invention will be obvious from the following particular description of one form of mechanism embodying the invention or from an inspection of the accompanying drawings; and the invention also constitutes certain `new and novel features of construction and combination of parts hereinafter set forth and claimed.

In the drawings:

Fig. 1 is a side view of the scale.

Fig. 2 is a section on line 2 2 of Fig. 1.

Fig. 3 is a section on line 3 3 of Fig. 1.

Fig. 4 is a section on line 4 4 of Fig. 3.

Fig. 5 is a view of the selecting key latching means.

Fig. 6 is a section on line 6 6 of Fig. 3.

Fig. 7 is a detail of a shutter operating means.

Fig. 8 shows the arrangement of selecting notches in the selecting combs for differentially controlling the operation of the factor levers.

Fig. 9 is a section online 9 9 of Fig. 3.

Fig. 10 is a section on line lO-lO of Fig. 3.

Fig. 11 is a section on line 11 11 of Fig. 3.

Fig. 12 is a section on line 12-12 of Fig. 3.

Fig. 13 is a side view of the price per pound indicating charts and the shutter therefor.

Fig. 14 is a schematic showing of the scale.

Before proceeding with the detailed disclosurel in connection with the figures of the drawings, the general plan of operation of the scale will be briefly described. The scale is designed to indicate weights in combination with the price of the commodity which 1930. Serial No. 433,440.

is bein-g weighed and provision is also made operated by different scale beams hereinafter referred to as the weight beam and the price beam respectively. 'The load receiving platform or receptacle is operatively connected to load offsetting pendulums as is usual in scales of this type. A weighing load on the scale is transmitted through a lever system to both the weight beam and the scale beam. This lever system includes a plurality of factor levers each of which is permanently, operatively connected to the load receiving platform or receptacie and to the weight beam so that all the factor levers are effective for every weighing operation. Each of the factor levers is normally disengaged from ythe price beam but any number or all of them may be operatively associated with it at will. The systems for interconnecting the various factor levers with the platform system have different distinctive operating ratios so that by varying the number of factor levers which are connected to the price beam this beam may be operated in accordance with different predetermined portions of the applied load. The weight beam and the price beam are each provided with individual load offsetting pendulums so that their load offsetting operations are entirely independent of each other except in so far as they are operated by the common factor levers. It will be understood then that every factor lever in the system is always operative so far as the .weight beam is concerned while any number of them may be made operative with regard to the price beam.

The schematic arrangement of the factor levers and other levers of the scale will be more clearly understood from Fig. 14 in which the levers and beams are represented diagrammatically in connection with associated load offsetting pendulums and charts. Referring to this figure it may be assumed that a vertical. member 307 illustrated in dotted lines, is connected to the platform or load receptacle so that it will be forced downward when a load is placed thereon. This member at its lower end is pivoted at 31 to a lever 32, the pivot point 3l in this particular example dividing the lever into two portions in the ratio of one to four. The lever 32 at one end is connected by a link 33 to the middle point of a lever 34 and owing to the ratio of the arm to the lever 32 it will be obvious that one-fifth of the load applied to the member 30 will be transmitted to the lever 34. The latter lever is connected by suitable links 35 to the middle points of levers 36, which in turn are connected at their ends through links 37 to individual factor levers 40, the pivot points on the factor lever being designated at 41. This pivot point divides each of theifactor levers in the ratio of one to four. rihe shorter arm of each of these factor levers is permanently connected to the weight beam 42 by links 43 while the longer arms are normally disconnected from the price beam 44 but each of levers 40'may be individually seated on an adjacent pivot 45 of the stirrup 46 on the lever 44, if desired. rEhe weight beam 42 is of U-shape and factor leversr47 forming an additional set are each connected by the linkage'48 to the end of the short arm of lever 32 in a manner entirely similar to that just described. The linkage 43, however, is connected to the middle point of the factor levers 47.

The weight lever 42 is connected through tape 50 to an offsetting pendulum 5l which through a lever 52 and link 53 and a suitable rack and pinion 54 isconnected to aweight chart 55. The price beam 44 through tape 56 is connected to a load offsetting pendulum 57 which 'through lever 53, link 59 and rack and pinion 60 is connected to a price chart 6l.

As each of the factor levers 40 and 47 are permanently connected to the weight beam 42 it is obvious that all he factor levers are operative inthe weighing operation and a definite and unchangeable ratio of the weight applied to member 30 will be transmitted to and balanced by pendulum 51. Hence the reading of weight chart 55 is not varied by the factor levers. As the pivots 45, however, can be individually connected to or dis connected from the price beam 44 at will the force applied from member 30 through levers 40 and 47 to price beam 44 for any given weighing load may be varied and tne indication Aof the price chart correspondingly controlled in accordance with different predeterminedl factors of the load. rllhe ratioof the weight applied to the member 30 to the force transmitted to the price beam 44 may be analyzed by Va specific example in which a load of one pound is applied to member 30 and is considered to consist of one hundred units of force. ln that case one-fifth or twenty units of the load will be applied to the link 33 andv transmitted to the factor levers 40 yand four-fifths of the load or 30 units will be applied through the links 48 to the' factor levers 47. rllhis results, of course, from the one to four ratio of the arms of lever 32. Thetwenty units applied to link 33 are divided into four equal parts of five units each by the levers 34 and 36 and one part of five units is transmitted yby each link 37 to its altached factor lever 40. Owing to the ratio of the arms of these factor levers the force of five units received by each will be again divided; four units being appliedto the weight beam 42 and one unit being effective at pivot 45. rThe force of 30 units transmitted through `the linkage 48 will be ultimately equally distributed to the factor levers 47,

each of these four factor ylevers receiving 20 units of which ten units is transmitted to the weight beam 42 through each link 63 and of which ten units is effective each adjacent pivot 45. The stirrups 46 on-the price beam 44 which carry the pivot bearings vfor the factor levers are spaced along the price bar 44 at equal progressive distancesfso that ifi'he factor lever 40 nearest the pivotof the beam is pivoted to its stirrup 46 a force of a delinite value which may represent one unit of value, for example one cent per pound `is effective in displacing the price pendulum 57 and consequently the price chart 61.

rher next factor lever 40, if pivoted on its stirrup 45 will be twice as effective in displacing the price beam and the price chart 55 and consequently would represent a value of two cents per pound. Vln like manner the other factor levers to the right may represent values of three and four cents per pound respectively. By selectively connecting 'two or more of the factor levers 40 to the price beam forces corresponding yto values up to ten cents will be eHective on the price beam. v

In a similarY manner the factor lever 47 nearest the pivot of price beam 44 may transmit a force to this beam corresponding to ten cents and by different combinations of the factor levers 47 forces corresponding values of ten cents up to the one dollar mayk be transmitted tothe price lever 44. lt is obvious then that the total force which may be applied to the price lever represent $1.10 per pound. Asthese money values are all referred to a weight of one pound placed on ythe member 30 it is obvious that if more than one 'pound is placed on 'the member 30 a reading yon the price chart 61 will indicatel the total price of the article being weighed at the selected price per pound. Y f y The structural details of the scale are indicated generally in Figs. i and 2. In Fig. l a scale of the platform typ-e is indicated as having a platform 65 rest-ing on supports 66 rigid with a supporting structure 6?. A member 68 depends upon the structure 67 and cooperates with a lever 69 which carries counter weights 70. Obviously, these counterweights balance a portion of the load applied to the platform. The unbalanced portion of the load istransmitted by a mem-y ber depending `upon the structure 67 to the system of levers represented iu Fig. 14 as has been briefly described in connection with said ligure.

Referring to Fig. 2 the weight chart is indicated at and consists of two adjacent scales reversed with respect to each other and displaced 180 degrees with respect to each other so that one scale may be read on one side oi the chart housing and the other scale on the other side with identical indications on beth sides. The dash pot 72 is associated with the lever 52 to dampen the oscillations of the structure. a dash pot 73 is associated with the lever 58 to dampen the oscillations of this part of the structure. lVhen the total price oi" an article being weighed is indicated in this manner it is often desirable to indicate the price per unit weight and this is provided for by the units charts 155 and 157 movable together and the tens charts 168 and 170 also movable together. These charts are arranged to indicate by their position the particular price per unit weight selected for the price con'initationV and are operated as will hereinafter be described by the mechanism which effects pivotal connections of the several factor levers 40 and 47 with the price beam 44.

The mechanism for selectively associating the factor levers with price beam 44 will now be described with reference to Figs. 3, 4, 5, 9, 10 and'11.

In trent oi the base housing 78 of the scale is a hand lever 79 for rocking a shaft80 liournaled in spaced vertical frame'plates 81, 82, 88 and 84 (see Figs. 8 and 10). Fixed to shaft 80 between frame plates 81 and 82 is the hub oi a toothed segment 86 meshing with a toothed segment 87 on-the lower end of a lever 88 also journaledbetween plates 81 and 82. The segment 87 in turn meshes with a segment 90 on a lever 91 similar to lever 88.

' The upper end of lever 88 is in cooperative engagement with four parallel bars 92 slidably guided on pins 93 and 94 fixed between standards or trame plates 81 and 82. The pins have grooves for guiding and spacing the bars. Similarly the upper end of lever 91 engages the sides of four bars 95 extending opposite to bars 92 and guided on grooved pins 98 and 96, the bars 95 and 94 alternating on pin 93.

Associated with bars 92 is a. group of four nested rods or sleeves 97 and below the latter a set ot four nested rods or sleeves 98. The rods are suitably, rotatably, supported by frames 81, 82, 83 and 84. Each bar 92 has a slot 100 shaped at the bottom to embrace an arm 101 depending from a sleeve 98 which terminates in said slot. Paired with each sleeve 98 through intermeshing teeth 102 is a corresponding sleeve 97 which terminates in the saine slot. Thus, the rst or outer sleeves 97 and 98 terminate in the slot 100 of the extreme right hand bar 92, as'viewed in Fig. 11 and are in mesh with each other so that'actuation of the lower sleeve 98 bythe said bar will effect corresponding and similar movement of both outer sleeves.` Similarly,

ythe second or next to the outermost pair of the bars 92 and 95 outwardly against springs 106, individually connected to the bars. YWhen the lever 79 is released for return movement the springs 106 yieldingly urge the bars 92 and 95 to follow the levers 88 and 91 which return to initial position, shown in Fig. 4. Each bar 92, however, may be selectively locked against being returned by its spring 106 by any one of a set of nine combs comprising levers 108 while bars 95 may be locked by a set of nine comb levers 109. The upper edges of the bars 92 and 95 are formed with nine notches 110 and 111, respectively, each for receiving the lower edge of an associated comb lever. The combs of each set are differently cut out in the lower edge to give each comb of a set a different value. Thus as shown in Fig. 8, on a basis of an index value of one unit, the combs of a set have different index values 1 to 9. The meaning of this will now be made clear.

The comb levers extend through the front of the casing and the outer ends are provided with finger keys 112. The keys of levers 108 are marked with 01 to 09, representing 1 to 9 cents and will hereinafter be referred to as the units keys. The keys of levers 109 are marked with 10 to 90 representing 10 toV 90 cents and will be referred to as the tens keys. If the key marked 90 is depressed, then the extreme right hand comb 109, as viewed in Fig. 4, is rocked on its pivot carried by standard 84, and seats only in the alined notch 110 of the irst bar 95 from the right hand side, as viewed in Fig. 11. This bar may be termed 95-1 for identification. The notches in the other bars 95 will not be engaged by this comb because the latter is notched above the other threeA bars 95, as indicated in Fig.l 8. Similarly, if the key marked 80 is depressed, the comb 109 rigid therewith. is depressed and will engage only the notch in the second bar 95 from the right or 95-2, as indicated in Fig. 8. It comb 109 corresponding to 20 is depressed, all but the bar 95-2 will be engaged, and so on. i

In a similar manner, depression of keys marked 01V to4 09 respectively, effects lockingV V by combs 108 of thebars 92441, 92-2, 91-1 and2, 92--8 and 1, etc.,ias indicated in Fig. 8.

Whenr lever 79 is Vrocked clockwise to pere,

mit spring 106 to return the bars 92' and 95, only those bars not locked by the comb levers will return to initial position.y The others tor levers 40. Similarly, each sleeve or rodV 104 terminates .under a different factor lever 47. ylfhus the outer sleeve 97 terminates below the factorr lever nearest the knife edgeV pivot113 of the price lever 44 (see Figs. 8V and 14), the neXt outer sleeve 97 terminates below the second lever 40 from the pivot of the price lever, and so on. Thus, each sleeve 97 is associated with a different factor lever 40 and each sleeve` 104 is associated with a diierent factor leverj47.

At its terminus under an associated factor lever 40, the sleeve 97 has clamped thereto a collarV 114 provided with an arm 11:5 carrying a lug 116 at the free end in which is a tapered cavity for receivingthe pointed end of a pinlike extension 117 of the knife edge pivotholding member 118. Similarly, sleeves 104 under their associated levers 47 have collars 119 provided with arms 120 for engaging pin-like extensions 121 of the knife edgepivot-carrying members 122 ofthe levers.

1n their initial positions, indicated in full lines in Fig. 9, all the arms 115l and 120are out of engagement with the extensions 117 and 121 of the factor levers. Consequenty ly all the factor levers areinitially connectedl tothe price lever 44.

Vhen at the beginning of an voperation, the hand lever79 is rocked counte'rclockwise (as viewed in Fig. 4) bars 92 and 95 move awayr from each other through arms 101.

of'nested'sleeves-98 and105, respectively rock nested sleeves 97 and 104 upwardly in oppo?l Arms 115 and 120 thereby site directions. respectively engage the pin extensions 117 and 121 and lift the factor levers 40 anc-i747 from the bearings of the stirrup 46`sus- I pended from theprice beam. The position `of f a factor lever at the end of this operation'is shown in dotted lines in Fig. 9. After vhand lever 79 has beenrocked counterclockwise, as described, and ti e factor levers released from the price beam, the operaf tor depresses either a units or a tens key or` TheV tenskey marked' 60 and the unitsA key marked y02 having been depressed, the sixth comb 109 from thefleft and thesecond comb 108' from the left, as viewed in Fig. 4,7011

*which the said keys are respectively mounted move down towards the bars 95 and 92. Reference to' Fig. 8 indicatesthat when the sixth comb 109 moves down, it enters a slot 110 in each of the bars 953 and 1 andv locks these bars landvthat when the second lever 108 moves down, it enters a slot V111 in each of bars 924, 3, and 1 yand locks these bars. After depressing these selected keys, the

'operator returns'lever 79 and springs 106 tend to return all the bars 92 and 95. The bars 92-4, 3, and 1,v being locked will not return and the sleeves 97 and98 associated therewith will not be rocked backto: initial .position and the first, third rand fourth factor levers 40from thepivj'ot'113 of the price lever will remain'disengaged from the price lever, .as indicated in dotted lines in Fig. 9.

The bar 922 not being restrained, its spring` `thereto theequivalent of two cents for a weight of one pound on the platform transmittedthrough member 30 to the factor levers. 1

Similarly, bars 95-3 and 1 being latched, the firstV and third factor levers 47 from the pivot of the price beam will beheld out yof contact with the price beam by the arms 120 of the/associated sleeves 104. The seco-ndv and fourth levers 47 will be replaced on the price beam and foreach pound of weight on the platform will displace the beam andthe price chart 61 the equivalent of sixty cents, as Lexplained in connection with Fig. 14. p

The aggregate of the forces onthe price beam exerted by the factor levers 40 and 47 is thus equivalent to 62 cents for each pound.

1f the object on the platform` weighs 4 e pounds, the total displacementV of the price beam will be equivalent to 4 times 62 or 132.48 which will be indicated on price chart 61. "Similtaneously, the weight beam 42 will have been displaced and the weight chart 55 will indicate' four pounds.

LWhen a factor lever 40 is disengaged from the price beam 44, the loss of leverage due to the proportion of its dead weight carried bythe price beam must be compensated for. For this purpose rigidly connected to the free end of the price beam through an open yoke '128 vis an extensioncomprising an arm 130 for carrying weights 131. Each weight is adapted tocompensatethe dead weight of a different factor lever. When a factor lever is lifted from the price beam, the corresponding weight 131 is deposited on the extension by means of Le cf sleeves 98 or 105.

Refer te r. 3, 10 12, the sleeves 98 and 105 termi e ffsuccessively below the weights 131 on extension 130. At their ends sleeves `90 and 105 have collars 132 clamped thereto which integral with arms initially engaged with weights 131, as shown in dotted lines in Fig. 12. rEhe weights 131 are thus initially free of thev extension 130. lWhen the hand lever 7 9 actuated counterclockwise all the sleeves 98 and 104 are rocked downwardly as already described in con nection with the operation of sleeves 97 and 104. Teights 131 are thereby deposited on the extension 130. l

After price keys 112 have been depressed return of hand lever 79 permits the free bars 92 and 95 to rock the associated sleeves 98 and 105 upwardly to initial position thus again eleasing the corresponding weights 131 from the extension 130. Those sleeves 98 'and 105 which correspond to the latched bars 92 and 95 will remain in the downwardly actuated position while the factor levers 40 and 47 ofl the same bars remain free of the price beam. Thus, the weights 131 act on the extension 130 of the price beam to compensate for the loss of dead weight of the released factor levers. The weights 131 are slidably guided and spaced by notched frame plates 135 and fixed pins 136.

In order to indicate the price per pound of the` article being weighed, the following mechanism is employed:

Referring to Figs. 6, 10 and 11, in back of and parallel to bars 92 is a bar 140 similarly. slidably guided on the'pins 93 and 94. ln back of and parallelto bars 95 is a bar 141 slidably guided on pins 93 and 96. When the hand lever 79 is rocked connterclockwise, integral rearward extending parts 142 and 43 of the upper ends of arms 88 and 91, respe tively, move the bars and 141 apart against the force of springs 106 in the same manner as bars 92 and 95 are moved apart by arms 88 and 91. The lower ends of bars 140 `and 141 are provided respectively with ack teeth 144 and 145 in mesh with toothed i te 146 and 147 rotatably mounted on i 144 and 145 rock the segments 146 and 1f'. in opposite directions. A bail 148 rotatably mounted on shaftv 80 has the forward ar rigid with the side of segment 146 and thc rear ear rigid with the side of a link 149 fNeely carried by shaft 80. The link 149 is pivoted to a link 150 forked at its upper end to embrace the sleeve 151. One side of the fork has a right angular extension 152 (Fig. 13) having a pin and slot connection 153 to the side of the web 154 of a chart 155. This chart is rotatable with and rigidly connected through asleeve 156 to a similar diamctrically opposite chart 157.

Charts and 157 are each marked with numbers 0 to 9 and are controlled by the units price keys 112. When a units key marked 06 is depressed, the figure 6 on chart will be displayed tlirougn window 158 of drum casing 159 and the ligure 6 on chart 157 will be displayed through the opposite window 160 of the casing.

Similarly, to indicate the tens ligure of the price per pound of the article, a bail 162 connects toothed segment 147 to a link 163 pivoted to the link 164 havingv its upper end forked to slidably embrace the sleeve 151. The angular extension 165 of the fork is connected at 166 to the side` of the web 167 of the chart 168 which through shaft 169 is rigidly connected to the opposite chart 170. Nhen a tens key 112 is depressed, one of the figures on chart 170 is visible through window 158 and the same ligure on chart 168 is visible through window 160. Sleeves 156, 151 and shaft 169 are concentric and relatively rotatable.

]f both a tens and a units key are depressed, the charts 170 and 155 will show the two denominational price per pound number in window 158 while charts 168 and 157 will show the same number in window 160.

The setting of the charts by the keys 112 is effected through combs 108 and 109. Y When any of the latter are depressed by the associated keys, as explained in describing the control of the factor levers, they move down into the path of one of the lugs 172 on the upper edge of bars 140 and 141. There are nine lugs on each bar, each differently spacedr from its paired comb lever. Thus, blocking of the lugs by their paired combs will cause .dierential movements of the bars. the bars 140 and 141 have been moved apart by the lever 79 simultaneously with the movement of factor lever control bars 92 and 95, the selected keys and connected comb levers are depressed and block associated lugs 175 on bars 140 and 141. When the lever 79 is released, springs 106 connected to vthe bars 140 and 141 tend to move them back to initial position, shown in Fig. 6, but the bars move only until blocked by the vdepressed comb levers. v During the latter movement, rack 144 rocks toothed segment 146 counterclockwise and through link 149 lowers link 150. Arm 152 at the upper end of the latter thereupon rocks charts 155 and 157 to the same extent. Thus, if the key marked 06 has been depressed, the bar 140 will on its return movement be stopped by engagement of the lug 17 2-6 with the comb 108-6 and segment 146, link 150 and Vplay the tens lcharts 155 and 157 will have a Correspendingy Vand 160 until the price per pound keys 112 have effected positioning of these charts. To accomplish this, shutter 175 is freely pivoted on sleeve 156 (Fig. 18) and has one side of its web 176 pivotally connected toa link 177 which at its lower end is fast to a member 178 (see Figs. 2 and 7 slidably guided for vertical movement onV a vfiXed pin 179 and kon shaft 80.` The member is provided with connected slots 180 and 181, the latter extending above the level of the slot 180.' VA lever 182is fixed to shaft 80 and when the hand lever 79 is rocked -at the beginning of an operation,

shaft 80 shifts lever 182 from slot 181 to slotV 180 in which it is releasably held by a spring strip'188. vIn passing from slot 181 to slot 180, the lever 182 raises member 178 and link 177 which through its connection to web 176 f of the shutter rocks the latter counterelockwise, as viewed in Figj13, to obscure the charts at the reading windows. After this, the price keys 112 are depressed and the shaft 80 returned to initial position while the combs 108 and 109 differentially control the f settingof the price per pound charts. Lever (ifi 182 thereupon returns to the slot 181 and per- *mits member 178 to move downwardly and replace the shutter 175 in initial position to reveal the ligureszon'the charts 155, 157, 168 and'170.l Y

When va keyv is depressed, it is latched in depressed position by the following mechanism: Referring to Figs. 5 and 11, a pair of opposing latch bars 185 are slidably mounted on pins 186 extending in front-of the frame plate 81. Each bar 185 has hooked lugs 187, each under a key 112. Initially, the keys are heldV above the hooks 187 by springs 188.

l The-latch bars are urged towards each other by a spring 189 and separated by the beveled sides 190 of a member 191 slidably guided on pin or rod 93 and on shaft 80. f When handle 79 is swung to the left, as viewed in Fig. 5.

1 it moves an arm 192 fast to shaft 80 towards the bevel edge 198 of a dog- 194 pivoted to `member 191 and held against pin 195 on the member b'y'a spring 196.` Pin 197 onk arm 192 cams the dog`194 and member 191 upwardly which spreads the latch barsap'art.

This disengages any of the keys from the associated hooks V187 which may have been hooked into the slots 198 (Figs. 10 and 11) of thel keys' during a previo-us operation. VJ hen the lever 79 completes its movement to 175 is provided to mask the price i gagesthe slot 198 of the key and latches theV latter. lf another key of the samebank of keys is then depressed, it will first cam the bar outwardly, thus releasing the first latched VkeyA and then be latched itself. By this means, if the wrong key has been operated, depression of the correct key Will release the wrong key.

After passing the left end ofthe bevel edge 1,93, theY dropping of dog 194 will lock the'a'rm 192 yieldingly again'streturn movement. lThis willk keep handflever 79v in desired position. for depressing keys 112. lhenthe keys have been operated, the hand lever may beswung tothe right moving dog 194 `Vagainst resistance of spring 196, the dog following the movement ofV pin 192 until the latter passes the left 198 of the'dog. The operation of the be briefly. summarized i' To' find the weight and it is placed on a platform 65. The lever 79 at the front of the machine is then moved counterclockwise. This causes the sliding bars 92 and 95 to move apart and through nested sleeves 97 and 104 to rock arms 115 and 120 upwardly andV release factor leversk 98 and105 through arms 138 to place all the weights 131 on theextension 130 of the beam machine will now end of the bevel f cost of an object,

44. The bars and 1471 will also be spread apart bythe ends 142 and143y of arms V88 and 91 fast to shaft 80 operated by the Aleft- Vward movement of hand lever 79. rlvhe price per pound indicating charts 155, r157, 168

and will thereby be moved completely from 0 to'past the'9 marks thereon through racks 144 and 145, segments 146 and 147 and the linkage connected thereto. 'The initial movement oflever 79 also moves the shutter to maskingposition through lever 182, Y

member 178, and'link 177'. f Finally, the initial movement of lever 7 9 first spreads the latch vbars apart to vrelease any keys 112 left latched by the previous weighing operation and then permits the bars to return to position foragain latching any key-112.v

' "The keys 112 areV now ready to be operated.

ist

i bars which return to initial position through sleeves 97 and 104, replace their connected factor levers on the price beam. The factor levers associated with the blocked bars 92 and 95 will remain free of the price beam. The other factor levers will be reset on the price beam. The weights 131 corresponding to released factor levers will remain on the extension 130.

While this is taking place, the depressed combs differentially position the bars 140 and 141 which through segments 146 and 147 move the price per pound 'indicating charts to aline the number 24 with the windows 158 and 160 of the casing. The

' shutter 175 in the meanwhile first masks these charts and is then returned to nonmasking position by return of lever 182 to slot 181 of member 178, so that the number 24 will be visible through each window.

The price beam 44 will through tape 56 rock pendulum 57 which through lever 58 and link 59 causes rack and pinion 60 to move the total price dial 61 to indicate in windows 158 and 160 the total price at y24 cents a pound of the article. Through tape 50, pendulum 51, and connected linkage 52, 53 and 54, the weight beam 42 moves the weight chart 55 to display the weight of the artic-le at windows 158 and 160.

While this is taking place, the bars 140 and 141 differentially position the price per pound indicating charts 155, 157, 168 and 170 to aline numbers 24 with the windows 158 and 160. The shutter 175 which masks these charts before the lever 79 is returned to initial position, unmasks them, after the lever has completed its return movement.

Thus, the weight, price per pound, and total cost of an article will be simultaneously displayed in the windows.

lmiile there has been shown and described and pointed out the fundamental novel features of the invention as applied to a single modification it will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its opera-tion may be made by those skilled in the art without departing from the spirit of the invention. It is the intention therefore to be limited only as indicated by the scope of the following claims:

l. A scale comprising a beam, a load support connected thereto, load offsetting means,

connecting devices for connecting said beam' and said load offsetting means, rockable means for individually engaging and operating said devices to var y the' connectionof the beam to the load offsetting means, keys for determining the operation of said rockable means, and means for mechanically actuating said rockable means under control of the keys after opera-tion of the latter, and while the latter are still in operated positions.

2. A scale comprising a beam, a load support connected thereto, load offsetting means, parallel factor levers spaced apart longitudinally of the beam for connecting said load offsetting means to differentpoints of said beam, rockable members for engaging said devices, and selecting means for controlling said members at will.

3. A scale comprising a load support, load offsetting means, an indicator operated by the latter, connections between the load support and the indicator including mechanism whereby the ratio of movement between the` load support and the load offsetting means and indicator may be varied, and means for controlling said mechanism including nested sleeves, and operating means for relatively moving said sleeves.

4. A scale comprising a load support, load offsetting means, connections between the support and said means including removable devices for varying the ratio of movement between the support and said means, nested sleeves, each having a member for operating one of said devices, and keys for selectively operating said sleeves.

5. A scale comprising a load support, load offsetting means, connections between the two including a series of factor levers, a plurality of rotatably mounted devices for controlling said levers, keys, and means operable independently of the keys subsequent to operation of the keys but under control of the latter for selectively controlling said devices. f

6. A scale comprising a load support, load offsetting means, connections between the two including a series of factor levers, a plurality of rotatably mounted devices for controlling said levers, and keys for selectively controlling said devices, and means for actuating all of said devices before operation of any key to render the keys effective for exercising control of the devices.

7. A scale comprising a load support, load offsetting means, variable connections between the support and said means, devices for operating said connections, slidable bars for operating said devices, and combination combs for selectively controlling said bars.

8. A scale comprising a load support, load offsetting means, variable connections between the two, devices for operating said connections, a hand lever` for preliminarily actuating said devices, selecting means for controlling said devices after such actuation, and means for rend erin g ineffective an operation of the selecting means before the lever has completed its preliminary actuation of said devices.

9. A scale comprising a load support, load rca offsetting means, variable connections vbetween the tivo, devicesfor operating said connections, a hand lever -movable in one direction for `setting up said devices, selecting means for said devices after the latter have been set up, and means for releasably holdbet-Ween the tivo, 'devices for operating said connections, means for positively operating said devices, selecting means for controlling said devices after a positive operation, and

means for releasably operating said devices under control of said selecting means.

11. A scale kcomprising 'a load support,

load offsetting means, a beam connecting the support and the load osetting means, factor levers for engaging the beam to variably con-y nect the support thereto, means for yselectively removing the factor levers from the beam, compensating devices associated with the i beam to compensate the dead Weight loss Vfof ay different factor lever When the latter is removed from the beam, and rotatably mounted means for individually and selectivelyact.- uating said compensating devices upon actuation of vthe associated factorV levers.

12. A scale comprising a Weight support, Weight offsetting means, variable connections between the tvvo adapted to vary the operation of said offsetting means in accordance with different factors, means for selecting said factors, indicating means operated by said osetting means forV indicating the product of a selected factor by the Weight on said support, indicating means for displaying the selected factor` arranged in juxtaposition to said first-named indicating means, and Vdiiferentially operable means movable independently of and into engagement With said factor selecting ymeans for setting said factor indicating means to display the selected factor. t v

13. In combination, a pair of equilibrium machine devices, variable ratio means connecting the devices, selectors for selecting the ratio at which the ratio means is to be set, and

means operated independently of the selectors for setting said ratio Vmeans under control of Y the latter according to the selected ratio. f

14.y In combination, a force sustaining device, a device operable under control of the first device, factor vlevers for inter-associating Vtrie tivo devices, means preliminarilyV operable to uniformly set the-factor levers relative to the aforesaid devices, and means subsequently operable for selecting the ratio according to which the factor levers are to be reset, said first-mentioned means being then operable forresetting the factor levers under control of the selecting'means according't lthe selected ratio. l

15. Incombination, a pair of equilibrium machine devices with variable ratio means inter-associating the tivo, selectors for selecting the ratio accordingto which the ratio means is to beset, and means. actuated 'independentlyv of the lselectors into `selective cooperation' with the selectors While Jthe latter are in selecting position for Vcoi'itrolling the setting of-saidy ratio meansy according to theV selected ratio. f

16. In combination, a pair of equilibrium machine devices Witli variable ratio means iiiter-associating the tivo, keys for selecting the setting of the ratio means, inemberscooperating with the depressed keys for controlling' -v the setting of the ratio means according to the selectedy ratio, andan operating device for` actuating said members. y y

V17. In combination, a pair of equilibrium machine. devices with factor levers interassociating the tivo, selectively settable stops for determining tlie'ratio according to which the factor levers are to be set, and means individually associated vvitli the factor levers coating With said stops for setting the factor levers according to the selected ratio.

18. In combination, a pair of equilibrium machine devicesr with variable ratiome-ans inter-associating the two, rockabletootlied means for controlling tlie ratio means, selectors operablefor selecting the ratio according to which the ratio means: is to be set, and means for operating said toothedmeans under control of the selectors.

19. In combination, a pair of equilibrium machine` members vwith a plurality of different denominationalv order variable ratio devices inter-associating the members, selectors for-selecting the ratio according to which Yeach of said Yratio 'devices' is :to be set, an ,ac-

tuator, and connections between .the actuator and each denominational order ratio device .commonly operated by the actuator for settingk the ratio devices under control of tlie selectors. i l

20.l In an equilibrium machine, a load support, a pluralityof slidable members, common guides for said members, stops for restraining operationy of said members selectively, and indicating means variably associated by said members with Vsaid `load ioo machine devices factoring means inter-asso ciating said devices, combs for controlling the factoring means, selectors for controlling the combs, and means for actuating the combs including a rockable toothed member engaging the comb, a toothed element meshing with the toothed member, and means rigid with the toothed element for operating the latter.

23. In combination, a force sustaining device, a device operable under control of the first device, factor levers for variably associating said devices with each other, rockable shafts, arms laterally extending from the shafts below the factor levers for engaging the levers, and means for rocking said shafts to effect actuation of the levers by the arms.

24. In an equilibrium machine, a pair of equilibrium devices, means for variably interassociating said devices, members for controlling said means, selector keys cooperating with a combination of said members for determining operation of the latter, an operat ing shaft, and means thereon for operating said members.

25. In combination, a pair of equilibrium machine members, variable ratio devices in ter-associating the members, selectors for selecting the ratio at which the ratio devices are to be set, means cooperating with the selectors for effecting the setting of the ratio devices according to the selected ratio, an operating shaft, and mechanism, operated by said shaft for actuating aforesaid means.

26. In combination, a load platform, a counterbalance, factor levers settable to variably connect the load platform to the counterbalance, selectors for determining the setting of the facto-r levers, and an operating mechanism for effecting a setting of the levers subsequent to operation of the selectors and under control of the latter.

27. In combination, a load platform, a

counterbalance, factor levers variably associating the load platform to the counterbalance, selectors operable to determine the setting of said levers, a handle, and operating controls between the handle and levers for effecting a setting of the levers under control `of said selectors.

28. In combination, a load platform, a counterbalance, factor levers for providing various multiplications between the load plat form and the counterbalance, an operating shaft, operating controls between the shaft and levers, the shaft being movable to cause a plurality of the factor levers to be dissociated by the operating controls from, the counterbalance, and selectors operable to selectively control the return of some of the levers into association with the counterbalance in accordance with the multiplication desired between the platform and counterbalance.

29. In combination, a load platform, a counterbalance, factor levers for providing various multiplications between the platform and counterbalance, a reciprocatable handle, operating connections between the handle FREDERICK L. FULLER. 

